Intraday Momentum Index

The Intraday Momentum Index (IMI) is a technical indicator developed by Tushar Chande that combines elements of candlestick analysis with the mathematical framework of the Relative Strength Index. Rather than comparing closing prices to prior closing prices as the RSI does, the IMI compares each candle's close to its own open. If a candle closes above its open — a bullish candle — its full body range (close minus open) is added to the gains bucket. If it closes below its open — a bearish candle — its body range is added to the losses bucket. These running totals are then processed in the same ratio formula used by RSI, producing an oscillator between 0 and 100.

This design makes the IMI sensitive to the intraday character of price action, giving weight to whether each period ended with buyers or sellers in control. Overbought conditions are typically identified when the IMI rises above 70, and oversold conditions when it falls below 30 — the same thresholds used in standard RSI interpretation. The IMI is particularly valuable for spotting short-term momentum shifts because it captures the direction of individual candle bodies, which is a direct reflection of the battle between bulls and bears within each period.

For automated crypto traders, the IMI offers a complementary perspective to close-to-close momentum indicators. Because it considers only the open-to-close relationship, it is less affected by overnight gaps or previous-session pricing, making it well-suited to the continuous nature of crypto markets where every candle has a fresh open. Bot systems can use the IMI's overbought and oversold readings as filters for entries, or look for divergences between IMI and price to identify trend exhaustion and position themselves ahead of reversals in shorter time frames.